Started whittling a few years ago. Nice hobby. Relaxing and therapeutic. Tried many different pocket knives, had varied results. Then tried a Mora 106. I have to say, if restricted to only one, this, for me, is it! Hence, "Daddy's home!"
Very comfortable for longer sessions, so simple to strop! Actually self-guiding.
To a beginner I would now probably recommend the shorter 120 over my favourite, the 106. But. I like them both. For the price of a Flexcut, you could have both the 106 and the 120. And some wood.
Tips. Nervous about using these? Practice on a bar of Ivory soap. Dry, obviously. Cheap media, commonly available, and lets you try a technique you may be unsure of without any variation in resistance that is the norm with all woods. Wood is a natural media with ever-changing characteristics with each pass of the woodcarving knife. Ivory soap has no grain and is therefore easy to carve. Try simple shapes then onto flowers. Even younger children can have a go, just shape a plastic picnic knife and "sharpen" it for them with a file, emery board, sandpaper etc. The plastic knife is safer, and again, start them off with soap. Use good judgment and discretion of course when introducing youngsters to this hobby.
Never force your knife!
Basswood carves beautifully, good for beginners.
You can make your own woodcarving knife from a discarded bandsaw blade. Ask around at local machine shops, manufacturing engineers, even scrapyards. Explain what you want it for. It helps to have a couple of samples of things you have already carved. You only need 3 or 4 inches of steel per knife. Most of the blade will be pressed or driven into a larger wooden handle which you can also carve or shape as needed, leaving only an inch or so of working blade. Look online at custom woodcarving knives for examples and ideas. When grinding your blade, if using a wheel, go slow and dip it in water frequently. I used a flexible abrasive disk on my drill. You can epoxy your blade into its handle, too. This lets you use a split handle design. Altogether, it's easier than you might think.
Good starter pocket knives for wood carving? Rough Rider makes Barlow, Canoe, Congress (personal favourite), Stockman, and, logically, Whittler patterns that do very well. Rough Riders are modestly priced. Many other brands are available, and prices will be more.
Depending on the model and individual blade geometry you may have to thin the edge, then sharpen to suit. And strop frequently. Nothing is more discouraging to a beginner than trying to use a knife that is not sharp enough.
Genuine Sheffield steel (not in name only) makes a very good choice. Easy to get sharp and holds a fine serviceable edge very well indeed!
The advantage to a good pocket knife is that your hobby becomes portable. UK friendly examples, of course.
But these Moras? While not legal for carry in the way that a pocket knife is, aside from home or studio use many will be using their Moras in conjunction with bushcraft or camping trips anyway - surely "with good reason" in any case!
The bottom line is that for value for money, comfort and ease of use, simplicity of maintaining, and above all, outstanding performance, a Mora 106 and or 120 is really the very best starting point.